Treatment of realistic tidal field in Monte Carlo simulations of star clusters

Abstract

We present a new implementation of the Monte Carlo method to simulate the evolution of star clusters. The major improvement with respect to the previously developed codes is the treatment of the external tidal field taking into account for both the loss of stars from the cluster boundary and the disk/bulge shocks. We provide recipes to handle with eccentric orbits in complex galactic potentials. The first calculations for stellar systems containing 21000 and 42000 equal-mass particles show good agreement with direct N-body simulations in terms of the evolution of both the enclosed mass and the Lagrangian radii provided that the mass-loss rate does not exceed a critical value.

17 pages, 13 figures, accepted for publication by MNRAS

References in corpus (4)

• Dynamical age differences among coeval star clusters as revealed by blue stragglers
• The orbits of 48 globular clusters in a Milky-Way-Like Barred Galaxy
• Six New Galactic Orbits of Globular Clusters in a Milky-Way-Like Galaxy
• Direct $N$-body simulations of globular clusters - II. Palomar 4

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• An Approximate Analytic Model of a Star Cluster with Potential Escapers
• Monte Carlo simulations of multiple populations in globular clusters: constraints on the cooling flow vs. accretion scenario using million bodies simulations
• A flexible method to evolve collisional systems and their tidal debris in external potentials
• New Insight into the stellar mass function of Galactic globular clusters
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• Monte Carlo simulations of multiple populations in globular clusters: constraints on the initial size of the second generation from binary stars
• Dynamics of intermediate mass black holes in globular clusters. Wander radius and anisotropy profiles
• Introducing a new multi-particle collision method for the evolution of dense stellar systems. Crash-test N-body simulations